/*
    testfunc03.cpp
    CIS 150
    2008-06-10
    David Klick
   
    This program demonstrates how to create
    and call a function that has multiple
    arguments and a return value.
*/

#include <iostream>
#include <iomanip>
using std::cin;
using std::cout;

void cont();
int sum(int x, int y);   // function prototype 

int main(int argc, char* argv[]) {
    int num1, num2;
    cout << "Enter two integers: ";
    cin >> num1 >> num2;
    cout << "The sum of the two integers is "
         << sum(num1, num2) << '\n';
        
    cont();
    return 0;
}

/*
    int sum(int a, int b);
   
    Arguments:
        int a: an arbitrary integer value
        int b: an arbitrary integer value
   
    Returns: the sum of the two ints passed in as args

    This function adds two integers and returns the result.
*/
int sum(int a, int b) {
    return a+b;
}

/*
    void cont();
   
    Arguments: none
   
    Returns: nothing
   
    Clears input buffer and pauses waiting for user 
    to press Enter.
*/
void cont() {
    if (cin.rdbuf()->sungetc() != -1 && cin.get() != '\n') cin.ignore(80,'\n');
    cout << "Press enter to continue...";
    cin.get();
}